Yüksek CVSS 7.8
CVE-2025-21703: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it would miss the opportunity to call cops->qlen_notify(), in the case of DRR, it resulted in UAF since DRR uses ->qlen_notify() to maintain its active list.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,30 (yüzdelik 23)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 5.4.288 | — | 5.4.291 |
| linux-linux-kernel | 5.10.232 | — | 5.10.235 |
| linux-linux-kernel | 5.15.175 | — | 5.15.179 |
| linux-linux-kernel | 6.1.121 | — | 6.1.129 |
| linux-linux-kernel | 6.6.67 | — | 6.6.78 |
| linux-linux-kernel | 6.12.6 | — | 6.12.14 |
| linux-linux-kernel | 6.13 | — | 6.13.3 |
| linux-linux-kernel | 6.14 | 6.14 | — |